PS2 or Origa Problem - Charlie ???

[three one]

I used my brand new v5 ps2 modded with an Origachip the other day standing vertically for the first time ever, however when i took it back to the other room and tried to play it lying flat i cannot get my backupz to work.

Backupz will now only work ( and thats not every time ) with the ps2 standing vertically.

Could this be a problem with the ps2 itself or is there some remote possibility that by standing the ps2 up on its side, i have maybe created a bad connection with the modchip, original games boot fine when console is in any orientation

Am trying to boot with both AR2 v2 and DVDrX and have had no problmes in the past

Help ????